et n=t.dot(this.direction);return n<0?t.copy(this.origin):t.copy(this.origin).addScaledVector(this.direction,n)}distanceToPoint(e){return Math.sqrt(this.distanceSqToPoint(e))}distanceSqToPoint(e){let t=xi.subVectors(e,this.origin).dot(this.direction);return t<0?this.origin.distanceToSquared(e):(xi.copy(this.origin).addScaledVector(this.direction,t),xi.distanceToSquared(e))}distanceSqToSegment(e,t,n,s){kc.copy(e).add(t).multiplyScalar(.5),Wa.copy(t).sub(e).normalize(),Xa.copy(this.origin).sub(kc);let r=e.distanceTo(t)*.5,a=-this.direction.dot(Wa),o=Xa.dot(this.direction),l=-Xa.dot(Wa),c=Xa.lengthSq(),h=Math.abs(1-a*a),f,u,d,g;if(h>0)if(f=a*l-o,u=a*o-l,g=r*h,f>=0)if(u>=-g)if(u<=g){let M=1/h;f*=M,u*=M,d=f*(f+a*u+2*o)+u*(a*f+u+2*l)+c}else u=r,f=Math.max(0,-(a*u+o)),d=-f*f+u*(u+2*l)+c;else u=-r,f=Math.max(0,-(a*u+o)),d=-f*f+u*(u+2*l)+c;else u<=-g?(f=Math.max(0,-(-a*r+o)),u=f>0?-r:Math.min(Math.max(-r,-l),r),d=-f*f+u*(u+2*l)+c):u<=g?(f=0,u=Math.min(Math.max(-r,-l),r),d=u*(u+2*l)+c):(f=Math.max(0,-(a*r+o)),u=f>0?r:Math.min(Math.max(-r,-l),r),d=-f*f+u*(u+2*l)+c);else u=a>0?-r:r,f=Math.max(0,-(a*u+o)),d=-f*f+u*(u+2*l)+c;return n&&n.copy(this.origin).addScaledVector(this.direction,f),s&&s.copy(kc).addScaledVector(Wa,u),d}intersectSphere(e,t){if(e.radius<0)return null;xi.subVectors(e.center,this.origin);let n=xi.dot(this.direction),s=xi.dot(xi)-n*n,r=e.radius*e.radius;if(s>r)return null;let a=Math.sqrt(r-s),o=n-a,l=n+a;return l<0?null:o<0?this.at(l,t):this.at(o,t)}intersectsSphere(e){return e.radius<0?!1:this.distanceSqToPoint(e.center)<=e.radius*e.radius}distanceToPlane(e){let t=e.normal.dot(this.direction);if(t===0)return e.distanceToPoint(this.origin)===0?0:null;let n=-(this.origin.dot(e.normal)+e.constant)/t;return n>=0?n:null}intersectPlane(e,t){let n=this.distanceToPlane(e);return n===null?null:this.at(n,t)}intersectsPlane(e){let t=e.distanceToPoint(this.origin);return t===0||e.normal.dot(this.direction)*t<0}intersectBox(e,t){let n,s,r,a,o,l,c=1/this.direction.x,h=1/this.direction.y,f=1/this.direction.z,u=this.origin;return c>=0?(n=(e.min.x-u.x)*c,s=(e.max.x-u.x)*c):(n=(e.max.x-u.x)*c,s=(e.min.x-u.x)*c),h>=0?(r=(e.min.y-u.y)*h,a=(e.max.y-u.y)*h):(r=(e.max.y-u.y)*h,a=(e.min.y-u.y)*h),n>a||r>s||((r>n||isNaN(n))&&(n=r),(a=0?(o=(e.min.z-u.z)*f,l=(e.max.z-u.z)*f):(o=(e.max.z-u.z)*f,l=(e.min.z-u.z)*f),n>l||o>s)||((o>n||n!==n)&&(n=o),(l=0?n:s,t)}intersectsBox(e){return this.intersectBox(e,xi)!==null}intersectTriangle(e,t,n,s,r){let a=this.origin,o=this.direction,l=o.x,c=o.y,h=o.z,f=e.x-a.x,u=e.y-a.y,d=e.z-a.z,g=t.x-a.x,M=t.y-a.y,m=t.z-a.z,p=n.x-a.x,b=n.y-a.y,A=n.z-a.z,v=Math.abs(l),T=Math.abs(c),E=Math.abs(h),C,x,w,I,D,O,V,N,z,q,X,ie;if(v>=T&&v>=E?(w=l,O=f,z=g,ie=p,l>=0?(C=c,x=h,I=u,D=d,V=M,N=m,q=b,X=A):(C=h,x=c,I=d,D=u,V=m,N=M,q=A,X=b)):T>=E?(w=c,O=u,z=M,ie=b,c>=0?(C=h,x=l,I=d,D=f,V=m,N=g,q=A,X=p):(C=l,x=h,I=f,D=d,V=g,N=m,q=p,X=A)):(w=h,O=d,z=m,ie=A,h>=0?(C=l,x=c,I=f,D=u,V=g,N=M,q=p,X=b):(C=c,x=l,I=u,D=f,V=M,N=g,q=b,X=p)),w===0)return null;let Y=C/w,j=x/w,ne=1/w,Pe=I-Y*O,we=D-j*O,dt=V-Y*z,tt=N-j*z,ot=q-Y*ie,$=X-j*ie,ee=ot*tt-$*dt,ve=Pe*$-we*ot,Ve=dt*we-tt*Pe;if(s){if(ee<0||ve<0||Ve<0)return null}else if((ee<0||ve<0||Ve<0)&&(ee>0||ve>0||Ve>0))return null;let be=ee+ve+Ve;if(be===0)return null;let Ge=ne*(ee*O+ve*z+Ve*ie);return(be>0?Ge<0:Ge>0)?null:this.at(Ge/be,r)}applyMatrix4(e){return this.origin.applyMatrix4(e),this.direction.transformDirection(e),this}equals(e){return e.origin.equals(this.origin)&&e.direction.equals(this.direction)}clone(){return new this.constructor().copy(this)}},Ft=class extends Nn{constructor(e){super(),this.isMeshBasicMaterial=!0,this.type="MeshBasicMaterial",this.color=new ge(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.envMapRotation=new bn,this.combine=ma,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.fog=!0,this.setValues(e)}copy(e){return super.copy(e),this.color.copy(e.color),this.map=e.map,this.lightMap=e.lightMap,this.lightMapIntensity=e.lightMapIntensity,this.aoMap=e.aoMap,this.aoMapIntensity=e.aoMapIntensity,this.specularMap=e.specularMap,this.alphaMap=e.alphaMap,this.envMap=e.envMap,this.envMapRotation.copy(e.envMapRotation),this.combine=e.combine,this.reflectivity=e.reflectivity,this.refractionRatio=e.refractionRatio,this.wireframe=e.wireframe,this.wireframeLinewidth=e.wireframeLinewidth,this.wireframeLinecap=e.wireframeLinecap,this.wireframeLinejoin=e.wireframeLinejoin,this.fog=e.fog,this}},Vu=new at,ts=new Js,qa=new li,Gu=new P,Ya=new P,Za=new P,Ja=new P,Vc=new P,$a=new P,Wu=new P,Ka=new P,Ze=class extends Vt{constructor(e=new ft,t=new Ft){super(),this.isMesh=!0,this.type="Mesh",this.geometry=e,this.material=t,this.morphTargetDictionary=void 0,this.morphTargetI